Improvement in fzfe-coxtfiiings



fff farm/m .fr u I N. Prsas. PHOTO-LlmoGRAPHEn, WASHINGTON u c i HACHADOOR P. GARABEDIAN, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent No. 84.87 5, (lated December l5, 1868.

, T IN PIPE-COUPLING'S.

. m The Schedule 4referred to in these Letters Patent and making part of the same. T0 @u whom t ma?! Co'fwnf I extend the length ofthe collar, but only so much of Be it known that L'HACHADOOR P. GARABEDIAN, it as is necessary to its proper working. of the city and county of Philadelphia, and State of The collar has a number of inclined slots, b, cut

Pennsylvania, have invented a new and improved through it, one'of which, b', is cut its. entire length;-

Coupling for Hose, Steam, and Water-Pipes, 85o. and the others, b, are only cut a proportionate distance, s0 I do hereby declare that the following is a full, clear, that the collar be a whole, and not be composed of sevand exact description of the same, reference being had eral parts.

to the accompanying sheet of drawings, and to the let- I), iig. 1, is a nut,'which takes over the screw-collar -ters ci reference marked thereon. .0. It has a screw formed in its bore, corresponding to My invention relates to a coupling for hose and other the screw on the collar, with the exception that, while pipes or tubes of soft metal or material. v both screws have thersamc pitch, the screw on the col- The ends of the hose or pipes to be coupled are first .lar is conical, and the screw formed in the bore of the connected by a tube, which takes into both. A conicalnut is cylindrical.

slotted tube, having a screw formed on its outer sur- It -will be readily seen that the nut D, when being face, is next passed on the hose, immediately over the screwed on the cone-screw c, forces the edges of the place of contact of the ends. vA nut is then screwed slots'b together, thereby binding the collar on the hose. on this slotted tube, which shrinks it, and compresses The pressure of the collar compresses the hose firmly the ends of the hose ou the inserted tube, thereby formon the inner tube B. and forms a perfectly tight joint| Y ing a perfectly tight joint. or connection.

On reference to the accompanying sheet of d raw- The.v nut D is formed with a cylindrical screw, to ings, making part of this specilicationmore easily andvefiectually close the collar. If it had Figure l shows the coupling and hose complete, and a conical screw,-corresponding with the screw a its.,

Figure 2 shows the sect-ions of hose, the couplingentire length, it would wedge on it, and fail to operate pipe, and the conical-slotted screw-tube. the collar. v

Similar letters refer to similar parts in the several What I claim as my invention, and desire to secure views. by Letters Patent, isv A A are sections of hose, which are coupled by my The collar C, with itsA conical screw c, and the in' invention, as follows: Y y clined slots b b', in combination with the'nut D and An inner tube, B, as shownin dotted lines, fig. 2, is the tube B, substantially as shown and described. inserted into the adjacent ends of the sections, which In testimony whereof, I ,hereunto sign my name to are afterward brought into contact. this specification, in presence of two subscribing wit- A screw-slotted collar, C, is passed on the sections, nesses. immediately over the place oi' contact of the ends, V HACHADOOR P. GARABEDIAN. which 'is constructed as follows: v `Witnesses:

Its bore is perfectly cylindrical, to correspond with FRANCIS D. PASTORIUS, the surface of the hose, while its outer surface has a JOHN WHITE.

conical screw, a, formed on it. As shown, it does not 

